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Method for preparing antioxidative polyester sheet

A polyester sheet, anti-oxidation technology, applied in the direction of coating, etc., can solve the problems of low fastness and poor durability, and achieve the effect of good anti-oxidation durability, low price, and good light transmission

Inactive Publication Date: 2018-07-17
SUZHOU WILLOCK ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the antioxidant is dissolved and then coated on the surface of the substrate, its fastness is low and the durability of anti-oxidation is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The invention provides a preparation method of an anti-oxidation polyester sheet, the steps are as follows:

[0025] (1) Weigh 40 parts by mass of methyl acrylate, 25 parts by mass of ethyl acrylate, 20 parts by mass of n-butyl acrylate, and 15 parts by mass of methacrylic acid and mix them uniformly to obtain a mixed reaction monomer; weigh 100 parts by mass of the mixed reaction monomer Parts by mass, a combination of emulsifier AEO-9 and K-12 (mass ratio 1:1) 2 parts by mass, initiator sodium persulfate 0.2 parts by mass and antioxidant 1010 0.5 parts by mass; Add the combination of AEO-9 and K-12 (mass ratio 1:1) at 50°C, add 1 / 4 (mass) sodium persulfate at 80°C, and then drop the mixed reaction monomer and 3 / 4 (mass) Sodium persulfate and continue to heat up; 3h dropwise addition is completed, at 90°C for 2h at a constant temperature; cooling down, adding antioxidant 1010 at a temperature of 50°C, keeping it warm for 1h, then cooling down to normal temperature to o...

Embodiment 2

[0029] The invention provides a preparation method of an anti-oxidation polyester sheet, the steps are as follows:

[0030] (1) Weigh 47 parts by mass of methyl acrylate, 23 parts by mass of ethyl acrylate, 18 parts by mass of n-butyl acrylate, and 12 parts by mass of methacrylic acid and mix them uniformly to obtain a mixed reaction monomer; weigh 100 parts by mass of the mixed reaction monomer Parts by mass, a combination of emulsifier AEO-9 and K-12 (mass ratio 1:1) 3 parts by mass, initiator sodium persulfate 0.4 parts by mass, antioxidant 1076 0.75 parts by mass, and antioxidant 168 0.75 parts by mass; Reactor Add water into the medium and raise the temperature, add the combination of AEO-9 and K-12 (mass ratio 1:1) at 30°C, add 1 / 4 (mass) sodium persulfate at 70°C; when the temperature rises to 75°C, drop Add mixed reaction monomers and 3 / 4 (mass) sodium persulfate and continue to heat up; 4 hours to complete the dropwise addition, and react at a constant temperature of ...

Embodiment 3

[0034] The invention provides a preparation method of an anti-oxidation polyester sheet, the steps are as follows:

[0035] (1) Weigh 44 parts by mass of methyl acrylate, 20 parts by mass of ethyl acrylate, 18 parts by mass of n-butyl acrylate, and 18 parts by mass of methacrylic acid and mix them uniformly to obtain a mixed reaction monomer; weigh 100 parts by mass of the mixed reaction monomer Parts by mass, 4 parts by mass of the combination of emulsifier AEO-9 and K-12 (mass ratio 1:1), 0.6 parts by mass of initiator sodium persulfate and 1 part by mass of antioxidant 1076; Add the combination of AEO-9 and K-12 at 40°C, add 1 / 4 (mass) sodium persulfate at 70°C; add the mixed reaction monomer and 3 / 4 (mass) persulfuric acid dropwise when the temperature rises to 75°C Add sodium and continue to heat up; 5h dropwise addition is completed, and react at a constant temperature of 85°C for 3h; cool down, add antioxidant 1076 at a temperature of 40°C, keep warm for 1.5h, and then ...

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PUM

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Abstract

The invention relates to a method for preparing an antioxidative polyester sheet with good oxidation resistance durability, simple production and high cost performance. The method comprises the stepsof preparing an antioxidative polyacrylate solution, adding auxiliary agent to the antioxidative polyacrylate solution to form an antioxidative coating liquid, and spraying the antioxidative coating liquid on a polyester sheet to form an antioxidative film through roller painting. The method coats the surface of the polyester sheet with a polyacrylate film containing antioxidant agent, so that thetime for attaching the antioxidant agent to the polyester sheet is improved, thereby improving the durability of oxidation resistance of the polyester sheet, and meanwhile the polyacrylate film has good light transmittance, similar hand feeling with a polyester film, low price and simple preparation process, and is non-toxic and environmental-protection and beneficial to saving cost and resources.

Description

technical field [0001] The invention relates to the field of polyester sheets, in particular to a preparation method of an anti-oxidation polyester sheet. Background technique [0002] Polyester sheet (PET) is made of polyethylene terephthalate as the main raw material. It has excellent electrical insulation properties, weak acid resistance and oil resistance, and is non-toxic and chemically resistant. Materials with low water absorption, light weight, and easy processing. Polyester sheet is used as various food, medicine, non-toxic and sterile packaging materials because of its many advantages; high-grade packaging materials for textiles, precision instruments, electrical components; audio tapes, video tapes, film films, computer floppy disks, metal coatings and Base materials such as photosensitive films are also used in electronic and mechanical fields such as electrical insulating materials, capacitor films, flexible printed circuit boards, and sheet switches. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C09D133/08C08F220/14C08F220/18C08F220/06C08F2/44C08K5/134C08K5/526C08L67/00
CPCC08F2/44C08F220/14C08J7/042C08J2367/00C08K5/1345C08K5/526C09D133/08C08F220/18C08F220/1804C08F220/06
Inventor 何建平
Owner SUZHOU WILLOCK ELECTRONICS TECH CO LTD
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